Date: Sun, 17 Apr 2011 21:06:29 +0200 From: Romain Garbage <romain.garbage@gmail.com> To: Jeremy Chadwick <freebsd@jdc.parodius.com> Cc: freebsd-stable@freebsd.org, Lystopad Olexandr <laa@laa.zp.ua> Subject: Re: ZFS root on MB Intel S3420GP Message-ID: <BANLkTi=e0XE8PdhC8un1onO4QSxrv7uctA@mail.gmail.com> In-Reply-To: <20110417185402.GA55984@icarus.home.lan> References: <20110417123232.GA96423@laa.zp.ua> <20110417142135.GA51568@icarus.home.lan> <20110417163135.GC96423@laa.zp.ua> <20110417183014.GA55444@icarus.home.lan> <20110417184538.GG96423@laa.zp.ua> <20110417185402.GA55984@icarus.home.lan>
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2011/4/17 Jeremy Chadwick <freebsd@jdc.parodius.com>: > On Sun, Apr 17, 2011 at 10:45:38PM +0400, Lystopad Olexandr wrote: >> >> What about ahci_load="YES" after freebsd install? Is it too late? > > I don't recommend enabling ahci.ko after the OS has already been > installed on an adX disk, simply because I believe the combination of > GEOM+CAM+ahci may show different geometry details than GEOM+ata would. > > Note: I said "I believe", not "I can confirm/validate". I could be > completely wrong. Rather than find out ( :-) ) I tend to try and do > things consistently from the very beginning. > > So you can try it if you want, be my guest, report back. I did it on a 8.1-RELEASE install: I installed the system as explained in the wiki (http://wiki.freebsd.org/RootOnZFS/GPTZFSBoot) and after some months of use, I added ahci_load="YES" to /boot/loader.conf. Device names changed from ad{4,8} to ada{0,1} and everything still worked fine, which kind of surprised me because I didn't do any labelling to my disks (I remember having done that earlier in 8.0 times, and zfs pool reported devices were unavailable, as was the pool, at that time). Regards, Romainhome | help
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